Abstract: A system, storage device, or method can provide fair allocation of advertising resources. In some implementations, a method can include identifying multiple advertisement slots, each of the advertisement slots being associated with a capacity constraint. The method can include receiving multiple advertisement reservations, each of the advertisement reservations requesting advertisement impressions at one or more of the advertisement slots. The method can include allocating a quantity of advertisement impressions to each advertisement reservation. The method can include calculating an overbooking score for each advertisement reservation. The overbooking score indicates a degree at which the advertisement reservation is satisfied by the quantity of advertisement impressions allocated to the advertisement reservation. A higher overbooking score indicates a lower degree of satisfaction.

Abstract: A non-strained epitaxial layer is formed to have a small transition width and a low amount or no amount of oxygen incorporated therein. During the formation of non-strained epitaxial layer, a germanium source gas is introduced. Germanium reacts with water and/or oxygen to form GeO, which sublimates from the surface of the non-strained epitaxial layer, instead of oxygen being incorporated into the lattice. Thus, a low temperature epitaxial process can be used to obtain the small transition width without having oxygen incorporated into the non-strained epitaxial layer.